CN211005238U - Pyrolysis treatment system of organic waste - Google Patents
Pyrolysis treatment system of organic waste Download PDFInfo
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- CN211005238U CN211005238U CN201921622150.0U CN201921622150U CN211005238U CN 211005238 U CN211005238 U CN 211005238U CN 201921622150 U CN201921622150 U CN 201921622150U CN 211005238 U CN211005238 U CN 211005238U
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Abstract
The utility model discloses an organic waste's pyrolysis treatment system, it includes natural gas air supply, combustor, pyrolysis oven, heavy oil knockout tower, heavy oil storage tank, light oil knockout tower, light oil storage tank, vapour and liquid separator, gas purification tower, water source, cooling tower and cooling water pitcher. Has the advantages that: the utility model has simple connection relation and easy realization; the problem of blockage of follow-up equipment and pipelines is effectively prevented, the service lives of the follow-up equipment and the pipelines are prolonged, the maintenance cost is reduced, the dust and oil are prevented from being emulsified in water to form floating slag, and the stable operation of a pyrolysis system is ensured; the rapid cooling of the pyrolysis gas is realized, the secondary pyrolysis reaction of the pyrolysis gas is avoided, and the generation of non-condensable gas is reduced; the quality of oil products is improved; ensuring the standard emission of the flue gas and reducing the fuel cost.
Description
The technical field is as follows:
the utility model relates to a processing system, in particular to organic waste's pyrolysis treatment system.
Background art:
pyrolysis refers to the chemical process of converting one organic waste (i.e., high molecular organic compounds) into several other substances (i.e., low molecular organic compounds); currently, pyrolysis technology is used in the industry to treat organic waste (such as waste tires, plastic waste, oily sludge, oil sand, etc.), although reduction and recycling of organic hazardous waste can be achieved. However, unsaturated hydrocarbons of small molecular chains generated in the pyrolysis process are converged into sticky solid substances (i.e. colloids) of large molecular chains, the colloids are mixed with dust carried by oil gas and then attached to the surfaces of equipment and pipelines, and coke is formed after long-time accumulation to block the equipment or the pipelines, so that normal production is influenced; the pyrolysis gas is also entrained with dust containing metal elements such as Al, Ca and the like, the dust has small density, small particles, large specific surface area and strong adhesiveness, is easy to adhere to the wall of a pipeline and a container, is difficult to remove, and can cause equipment or pipeline blockage after long-time accumulation, and after the existing pyrolysis equipment is operated for 3-6 months, the problems of heavy component condensation and dust clogging of the pipeline and the equipment are easily caused, so that the maintenance cost is increased, the pyrolysis efficiency is reduced, and the service life is short; at present, the mode of spraying, quenching and dedusting is adopted to cool and remove dust from pyrolysis gas, secondary pyrolysis is also prevented from being carried out on the pyrolysis gas, the generation of non-condensable gas is reduced, but oil gas and dust in the pyrolysis gas are dissolved in water, and are extremely easy to emulsify to form scum, and are difficult to remove completely, so that scum exists in separated oil and water, the operation stability of a pyrolysis process is influenced, and the production capacity of a system is reduced.
The utility model has the following contents:
an object of the utility model is to provide a relation of connection is simple, has avoided blockking up, and has improved the pyrolysis treatment system of the organic waste of oil quality.
The utility model discloses by following technical scheme implement: a pyrolysis treatment system for organic wastes comprises a natural gas source, a burner, a pyrolysis furnace, a heavy oil separation tower, a heavy oil storage tank, a light oil separation tower, a light oil storage tank, a gas-liquid separator, a gas purification tower, a water source, a cooling tower and a cooling water tank; the gas outlet of the natural gas source is communicated with the gas inlet of the burner through a pipeline, and the gas outlet of the burner is communicated with the flue gas inlet of the pyrolysis furnace through a pipeline; a pyrolysis gas outlet of the pyrolysis furnace is communicated with a pyrolysis gas inlet of the heavy oil separation tower through a pipeline; an oil outlet of the heavy oil separation tower is communicated with an oil inlet of the heavy oil storage tank through a pipeline, and an air outlet of the heavy oil separation tower is communicated with a pyrolysis gas inlet of the light oil separation tower through a pipeline; an oil outlet of the light oil separation tower is communicated with an oil inlet of the light oil storage tank through a pipeline; the gas outlet of the light oil separation tower is communicated with the gas inlet of the gas-liquid separator through a pipeline, the liquid outlet of the gas-liquid separator is communicated with the liquid inlet of the light oil storage tank through a pipeline, the gas outlet of the gas-liquid separator is communicated with the gas inlet of the gas purification tower through a pipeline, and the gas outlet of the gas purification tower is communicated with the gas inlet of the combustor through a pipeline; the water source is communicated with a cooling water inlet of the cooling tower through a pipeline, a cooling water outlet of the cooling tower is communicated with a water inlet of the cooling water tank through a pipeline, and a water outlet of the cooling water tank is communicated with water inlets of a water spray pipe of the heavy oil separation tower and a water spray pipe of the light oil separation tower respectively; the water outlet of the heavy oil separation tower and the water outlet of the light oil separation tower are both communicated with the cooling water inlet of the cooling tower through pipelines.
Furthermore, the device also comprises a high-temperature-resistant filter element, and a plurality of pyrolysis gas outlets are arranged at the top of the pyrolysis furnace; and the high-temperature-resistant filter element is fixedly arranged at each pyrolysis gas outlet in the pyrolysis furnace.
Furthermore, the high-temperature-resistant filter element is a stainless steel high-temperature-resistant filter element or a nickel alloy filter element.
Further, spraying pipes are respectively arranged above the heavy oil separation tower and the light oil separation tower; each spray pipe is provided with a plurality of spray heads, and the bottoms in the heavy oil separation tower and the light oil separation tower are respectively provided with an oil-water separation chamber; a vertically arranged isolation plate is formed at the bottom of the heavy oil separation tower and the light oil separation tower, and the bottom end of the isolation plate extends into the oil-water separation chamber; an overflow plate is vertically and fixedly arranged between the isolation plate and the side wall of the oil-water separation chamber, the bottom end of the overflow plate is fixed at the bottom of the oil-water separation chamber, and the overflow plate and the isolation plate are arranged in a staggered manner; an oil outlet is formed in the bottom of the side wall of the oil-water separation chamber on one side of the overflow plate; a water outlet is formed in the bottom of the oil-water separation chamber on the other side of the overflow plate; the water outlet is positioned at one side provided with the isolation plate; and pyrolysis gas inlets are respectively formed on the heavy oil separation tower and the light oil separation tower between the spray pipe and the oil-water separation chamber.
Further, the system also comprises a first temperature sensor, a second temperature sensor, a first circulating pump, a second circulating pump and a controller; the first temperature sensor is arranged at an air outlet at the top in the heavy oil separation tower; the first circulating pump is arranged on the spray pipe of the heavy oil separation tower; the second temperature sensor is arranged at an air outlet at the top in the light oil separation tower; the second circulating pump is arranged on the spray pipe of the light oil separation tower; the signal output ends of the first temperature sensor and the second temperature sensor are in signal connection with the signal input end of the controller, and the signal output end of the controller is in signal connection with the signal input ends of the first circulating pump and the second circulating pump respectively.
The utility model has the advantages that: 1. the utility model has simple connection relation and easy realization; the high-temperature-resistant filter element is arranged at the pyrolysis gas outlet of the pyrolysis furnace, so that dust is carried in the pyrolysis gas generated by the pyrolysis furnace, the dust is prevented from entering subsequent equipment and pipelines along with the pyrolysis gas, the problem of blockage of the subsequent equipment and pipelines is effectively prevented, the service lives of the subsequent equipment and pipelines are prolonged, the maintenance cost is reduced, and the pyrolysis efficiency is improved; meanwhile, dust is prevented from entering the heavy oil separation tower and the light oil separation tower, so that the dust and oil are prevented from being emulsified in water to form floating slag, the stable operation of a pyrolysis system is ensured, and the production capacity is improved; 2. the first temperature sensor and the second temperature sensor are arranged in the heavy oil separation tower and the light oil separation tower, so that the heavy oil separation tower and the light oil separation tower can be operated at any timeDetecting the temperature of the cooled gas, transmitting the detected temperature value to a controller, controlling the rotating speed of a first circulating pump and a second circulating pump by the controller to control the temperature of the cooled gas within a set temperature range, further rapidly cooling the pyrolysis gas, avoiding secondary pyrolysis reaction of the pyrolysis gas, reducing the generation of non-condensable gas, simultaneously enabling unsaturated hydrocarbons in the pyrolysis gas to be difficult to polymerize, namely reducing the generation of macromolecular chain colloid and improving the quality of oil products, and 3, enabling the non-condensable gas separated by a gas-liquid separator to pass through a gas purification tower, and removing HC L and H in the non-condensable gas by an adsorbent in the gas purification tower2S、 NH3When harmful gas is used, the non-condensable gas for removing the harmful gas is used as fuel to enter the combustor for combustion, so that the standard emission of flue gas is ensured, the environmental pollution is avoided, the consumption of natural gas is reduced, and the fuel cost is reduced.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.
Fig. 2 is a control schematic diagram of the embodiment of the present invention.
The device comprises a natural gas source 1, a combustor 2, a pyrolysis furnace 3, a heavy oil separation tower 4, a heavy oil storage tank 5, a light oil separation tower 6, a light oil storage tank 7, a gas-liquid separator 8, a gas purification tower 9, a water source 10, a cooling tower 11, a cooling water tank 12, a high-temperature-resistant filter element 13, a first temperature sensor 14, a second temperature sensor 15, a first circulating pump 16, a second circulating pump 17, a controller 18, a spray pipe 19, a spray head 20, an oil-water separation chamber 21, a partition plate 22 and an overflow plate 23.
The specific implementation mode is as follows:
as shown in fig. 1-2, a pyrolysis treatment system for organic waste comprises a natural gas source 1, a burner 2, a pyrolysis furnace 3, a heavy oil separation tower 4, a heavy oil storage tank 5, a light oil separation tower 6, a light oil storage tank 7, a gas-liquid separator 8, a gas purification tower 9, a water source 10, a cooling tower 11, a cooling water tank 12, a high temperature resistant filter element 13, a first temperature sensor 14, a second temperature sensor 15, a first circulation pump 16, a second circulation pump 17 and a controller 18; the gas outlet of the natural gas source 1 is communicated with the gas inlet of the combustor 2 through a pipeline, and the gas outlet of the combustor 2 is communicated with the flue gas inlet of the pyrolysis furnace 3 through a pipeline; a plurality of pyrolysis gas outlets are arranged at the top of the pyrolysis furnace 3; each pyrolysis gas outlet in the pyrolysis furnace 3 is respectively and fixedly provided with a high-temperature-resistant filter element 13, so that dust is carried in the pyrolysis gas generated by the pyrolysis furnace 3, the dust is prevented from entering subsequent equipment and pipelines along with the pyrolysis gas, the problem of blockage of the subsequent equipment and pipelines is effectively prevented, the service lives of the subsequent equipment and pipelines are prolonged, the maintenance cost is reduced, and the pyrolysis efficiency is improved; meanwhile, dust is prevented from entering the heavy oil separation tower 4 and the light oil separation tower 6, so that the dust and oil are prevented from being emulsified in water to form floating slag, the stable operation of a pyrolysis system is ensured, and the production capacity is improved; the high-temperature-resistant filter element 13 is a stainless steel high-temperature-resistant filter element; a pyrolysis gas outlet of the pyrolysis furnace 3 is communicated with a pyrolysis gas inlet of the heavy oil separation tower 4 through a pipeline; an oil outlet of the heavy oil separation tower 4 is communicated with an oil inlet of a heavy oil storage tank 5 through a pipeline, and an air outlet of the heavy oil separation tower 4 is communicated with a pyrolysis gas inlet of a light oil separation tower 6 through a pipeline; an oil outlet of the light oil separation tower 6 is communicated with an oil inlet of the light oil storage tank 7 through a pipeline; an air outlet of the light oil separation tower 6 is communicated with an air inlet of a gas-liquid separator 8 through a pipeline, a liquid outlet of the gas-liquid separator 8 is communicated with a liquid inlet of a light oil storage tank 7 through a pipeline, an air outlet of the gas-liquid separator 8 is communicated with an air inlet of a gas purification tower 9 through a pipeline, and an air outlet of the gas purification tower 9 is communicated with an air inlet of the combustor 2 through a pipeline; the water source 10 is communicated with a cooling water inlet of a cooling tower 11 through a pipeline, a cooling water outlet of the cooling tower 11 is communicated with a water inlet of a cooling water tank 12 through a pipeline, and a water outlet of the cooling water tank 12 is communicated with a water inlet of a water spray pipe of a heavy oil separation tower 4 and a water inlet of a water spray pipe of a light oil separation tower 6 respectively; the water outlet of the heavy oil separation tower 4 and the water outlet of the light oil separation tower 6 are both communicated with the cooling water inlet of the cooling tower 11 through pipelines.
A spray pipe 19 is respectively arranged above the heavy oil separation tower 4 and the light oil separation tower 6; a plurality of spray nozzles 20 are arranged on each spray pipe 19, and oil-water separation chambers 21 are respectively arranged at the bottoms in the heavy oil separation tower 4 and the light oil separation tower 6; a vertically arranged partition plate 22 is formed at the bottom of the heavy oil separation tower 4 and the light oil separation tower 6, and the bottom end of the partition plate 22 extends into the oil-water separation chamber 21; an overflow plate 23 is vertically and fixedly arranged between the partition plate 22 and the side wall of the oil-water separation chamber 21, the bottom end of the overflow plate 23 is fixed at the bottom of the oil-water separation chamber 21, and the overflow plate 23 and the partition plate 22 are arranged in a staggered manner; an oil outlet is arranged at the bottom of the side wall of the oil-water separation chamber 21 on one side of the overflow plate 23; a water outlet is arranged at the bottom of the oil-water separation chamber 21 at the other side of the overflow plate 23; the water outlet is positioned at one side provided with the isolation plate 22; the heavy oil separation tower 4 and the light oil separation tower 6 between the spray pipe 19 and the oil-water separation chamber 21 are respectively provided with a pyrolysis gas inlet.
A first temperature sensor 14 is arranged at an air outlet at the top in the heavy oil separation tower 4; a first circulating pump 16 is arranged on a spray pipe 19 of the heavy oil separation tower 4; a second temperature sensor 15 is arranged at an air outlet at the top in the light oil separation tower 6; a second circulating pump 17 is arranged on a spray pipe 19 of the light oil separation tower 6; the signal output ends of the first temperature sensor 14 and the second temperature sensor 15 are connected with the signal input end of the controller 18 through signals, and the signal output end of the controller 18 is connected with the signal input ends of the first circulating pump 16 and the second circulating pump 17 through signals.
The working principle is as follows: send organic waste to pyrolysis oven 3 in from pyrolysis oven 3's feed inlet and carry out the pyrolysis, the high temperature flue gas is obtained in the burning of natural gas in combustor 2, and the high temperature flue gas carries out indirect heating to organic waste in entering into pyrolysis oven 3, directly is discharged after the heating, and organic waste carries out the pyrolysis in pyrolysis oven 3, and the residue after the pyrolysis is sent to power plant burning or the residue after the pyrolysis is sent toThe pyrolysis gas obtained by pyrolysis is filtered by a high-temperature resistant filter element 13 and then enters a heavy oil separation tower 4 to be rapidly cooled by spraying cooling water, so that heavy oil in the pyrolysis gas is liquefied and mixed with water and falls into an oil-water separation chamber 21 at the bottom of the heavy oil separation tower 4, the heavy oil floats above the cooling water, the heavy oil overflows an overflow plate 23 and is discharged into a heavy oil storage tank 5 for storage, the gas without condensation enters a light oil separation tower 6 to be rapidly cooled by spraying cooling water, the light oil in the gas without condensation is liquefied and mixed with water and falls into the oil-water separation chamber 21 at the bottom of the light oil separation tower 6, the light oil floats above the cooling water, the light oil overflows the overflow plate 23 and is discharged into the light oil storage tank 7 for storage, the non-condensable gas enters a gas-liquid separator 8 to be subjected to gas-liquid separation, the separated liquid enters a light oil storage tank 7 for storage, the separated gas enters a clean gas tower 9, and an adsorbent L and HC 78 in the clean gas tower 9 are removed2S、NH3When harmful gas is generated, the non-condensable gas without the harmful gas is used as fuel to enter the combustor 2 for combustion, so that the standard emission of flue gas is ensured, the environmental pollution is avoided, the consumption of natural gas is reduced, and the fuel cost is reduced; the cooling water at the bottom of the oil-water separation chamber 21 of the heavy oil separation tower 4 and the light oil separation tower 6 is sent to the cooling tower 11 to be cooled, and then stored in the cooling water tank 12, and then returned to the heavy oil separation tower 4 and the light oil separation tower 6 to spray-cool the gas.
The first temperature sensor 14 detects the temperature of the uncondensed gas in the heavy oil separation tower 4 at any moment and transmits the temperature value to the controller 18, when the detected temperature value is higher than the upper limit of a set value, the controller 18 controls the rotating speed of the first circulating pump 16 to be increased, the cooling water spraying amount in the heavy oil separation tower 4 is increased, and when the detected temperature value is lower than the lower limit of the set value, the controller 18 controls the rotating speed of the first circulating pump 16 to be slowed down, and the cooling water spraying amount in the heavy oil separation tower 4 is reduced; the second temperature sensor 15 detects the temperature of the non-condensable gas in the light oil separation tower 6 at any moment, and transmits a temperature value to the controller 18, when the detected temperature value is higher than the upper limit of a set value, the controller 18 controls the rotating speed of the second circulating pump 17 to be increased, the cooling water spraying amount in the light oil separation tower 6 is increased, and when the detected temperature value is lower than the lower limit of the set value, the controller 18 controls the rotating speed of the second circulating pump 17 to be slowed down, and the cooling water spraying amount in the light oil separation tower 6 is reduced; the temperature of the cooled gas is controlled within a set temperature range, so that the pyrolysis gas is rapidly cooled, secondary pyrolysis reaction of the pyrolysis gas is avoided, and the generation of non-condensable gas is reduced; meanwhile, unsaturated hydrocarbon in the pyrolysis gas is difficult to polymerize, namely macromolecular chain colloid generation is reduced, and the quality of oil products is improved; the utility model discloses the relation of connection is simple, easily realizes.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A pyrolysis treatment system for organic wastes is characterized by comprising a natural gas source, a combustor, a pyrolysis furnace, a heavy oil separation tower, a heavy oil storage tank, a light oil separation tower, a light oil storage tank, a gas-liquid separator, a gas purification tower, a water source, a cooling tower and a cooling water tank; the gas outlet of the natural gas source is communicated with the gas inlet of the burner through a pipeline, and the gas outlet of the burner is communicated with the flue gas inlet of the pyrolysis furnace through a pipeline; a pyrolysis gas outlet of the pyrolysis furnace is communicated with a pyrolysis gas inlet of the heavy oil separation tower through a pipeline; an oil outlet of the heavy oil separation tower is communicated with an oil inlet of the heavy oil storage tank through a pipeline, and an air outlet of the heavy oil separation tower is communicated with a pyrolysis gas inlet of the light oil separation tower through a pipeline; an oil outlet of the light oil separation tower is communicated with an oil inlet of the light oil storage tank through a pipeline; the gas outlet of the light oil separation tower is communicated with the gas inlet of the gas-liquid separator through a pipeline, the liquid outlet of the gas-liquid separator is communicated with the liquid inlet of the light oil storage tank through a pipeline, the gas outlet of the gas-liquid separator is communicated with the gas inlet of the gas purification tower through a pipeline, and the gas outlet of the gas purification tower is communicated with the gas inlet of the combustor through a pipeline; the water source is communicated with a cooling water inlet of the cooling tower through a pipeline, a cooling water outlet of the cooling tower is communicated with a water inlet of the cooling water tank through a pipeline, and a water outlet of the cooling water tank is communicated with water inlets of a water spray pipe of the heavy oil separation tower and a water spray pipe of the light oil separation tower respectively; the water outlet of the heavy oil separation tower and the water outlet of the light oil separation tower are both communicated with the cooling water inlet of the cooling tower through pipelines.
2. The system for the pyrolysis treatment of organic waste according to claim 1, further comprising a high temperature resistant filter element, wherein a plurality of pyrolysis gas outlets are arranged at the top of the pyrolysis furnace; and the high-temperature-resistant filter element is fixedly arranged at each pyrolysis gas outlet in the pyrolysis furnace.
3. The system of claim 2, wherein the high temperature resistant filter element is a stainless steel high temperature resistant filter element or a nickel alloy filter element.
4. The system for the pyrolysis treatment of organic waste according to any one of claims 1 to 3, wherein a spray pipe is respectively arranged above the heavy oil separation tower and the light oil separation tower; each spray pipe is provided with a plurality of spray heads, and the bottoms in the heavy oil separation tower and the light oil separation tower are respectively provided with an oil-water separation chamber; a vertically arranged isolation plate is formed at the bottom of the heavy oil separation tower and the light oil separation tower, and the bottom end of the isolation plate extends into the oil-water separation chamber; an overflow plate is vertically and fixedly arranged between the isolation plate and the side wall of the oil-water separation chamber, the bottom end of the overflow plate is fixed at the bottom of the oil-water separation chamber, and the overflow plate and the isolation plate are arranged in a staggered manner; an oil outlet is formed in the bottom of the side wall of the oil-water separation chamber on one side of the overflow plate; a water outlet is formed in the bottom of the oil-water separation chamber on the other side of the overflow plate; the water outlet is positioned at one side provided with the isolation plate; and pyrolysis gas inlets are respectively formed on the heavy oil separation tower and the light oil separation tower between the spray pipe and the oil-water separation chamber.
5. A system for pyrolytic processing of organic waste according to any one of claims 1-3 further comprising a first temperature sensor, a second temperature sensor, a first circulation pump, a second circulation pump and a controller; the first temperature sensor is arranged at an air outlet at the top in the heavy oil separation tower; the first circulating pump is arranged on the spray pipe of the heavy oil separation tower; the second temperature sensor is arranged at an air outlet at the top in the light oil separation tower; the second circulating pump is arranged on the spray pipe of the light oil separation tower; the signal output ends of the first temperature sensor and the second temperature sensor are in signal connection with the signal input end of the controller, and the signal output end of the controller is in signal connection with the signal input ends of the first circulating pump and the second circulating pump respectively.
6. The system of claim 4, further comprising a first temperature sensor, a second temperature sensor, a first circulation pump, a second circulation pump, and a controller; the first temperature sensor is arranged at an air outlet at the top in the heavy oil separation tower; the first circulating pump is arranged on the spray pipe of the heavy oil separation tower; the second temperature sensor is arranged at an air outlet at the top in the light oil separation tower; the second circulating pump is arranged on the spray pipe of the light oil separation tower; the signal output ends of the first temperature sensor and the second temperature sensor are in signal connection with the signal input end of the controller, and the signal output end of the controller is in signal connection with the signal input ends of the first circulating pump and the second circulating pump respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921622150.0U CN211005238U (en) | 2019-09-26 | 2019-09-26 | Pyrolysis treatment system of organic waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921622150.0U CN211005238U (en) | 2019-09-26 | 2019-09-26 | Pyrolysis treatment system of organic waste |
Publications (1)
| Publication Number | Publication Date |
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| CN211005238U true CN211005238U (en) | 2020-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201921622150.0U Expired - Fee Related CN211005238U (en) | 2019-09-26 | 2019-09-26 | Pyrolysis treatment system of organic waste |
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| Country | Link |
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| CN (1) | CN211005238U (en) |
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2019
- 2019-09-26 CN CN201921622150.0U patent/CN211005238U/en not_active Expired - Fee Related
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Granted publication date: 20200714 Termination date: 20210926 |